Anyone really know the COR/COMP rating on the yellow/green balls? A.D. Start does not seem to list the ratings. "Specifically designed BP ball with a unique COR/COMP combination for bat break in and minimal bat damage" I'd like to know what "unique" means in terms of their ratings. Of course, since the common player doesn't have any way to test the COR/COMP of a particular ball, we sort of have to take their word for it.